APA (7th ed.) Zitazioa
Youssef, M. (1980). Making Christ known to Muslims. Haggai Institute for Advanced Leadership Training.
Chicago Style (17th ed.) Zitazioa
Youssef, Michael. Making Christ Known to Muslims. Atlanta: Haggai Institute for Advanced Leadership Training, 1980.
MLA (9th ed.) Zitazioa
Youssef, Michael. Making Christ Known to Muslims. Haggai Institute for Advanced Leadership Training, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.